Arch Tower - Silver / Black Overall Dimensions: 47.25" W x 25" D x 74" H Main Work Surface: 47.25"W x 25" D 2 Upper Shelves: 31.5"W x 11"D 1 Lower Shelf: 47.25"W x 23.25"D Slide Out Keyboard: 29"W x 11.75"D Overall Dimensions: 47.25 W x 25 D x 74 H Main Work Surface: 47.25W x 25 D 2 Upper Shelves: 31.5W x 11D 1 Lower Shelf: 47.25W x 23.25D Slide Out Keyboard: 29W x 11.75D